Tension device for loosvi-shuttles



(No Model.)

E. DOMENGE. TENSION DEVICE PORl LOOM SHUTTLES.

Patented Sept. 5, 1893.

/NVENTOH @if LUM/L A TTUHNEYS iiniiTiin STnTns FnTnNT Trios.

ETIENNE DOMENGE, OE PATERSGN, NEV JERSEY.

TENSiON DEViCE FUR LOMHSHUTTLES.

SPECIFICATION forming part of Letters 'Patent No. 504,567, dated September 5, 1893.

Application filed April 13, 1893- Seria-l N0.4.70,l76. (No model.)

To @ZZ whom it may concern,.-

Be it known that l, ETIENNE DOMENGE, of Paterson, in the county ot Passaic and State of New Jersey, have invented a new and Improved rlension Device for Loom-Shuttles, of which the following is a full, clear, and exact description.

My invention relates to improvements in tension devices for shuttles and especially for such devices as are used in connection with shuttles used in weaving silk.

It is necessary in weaving silk to provide tension devices by which the tension of the threads may be regulated to a nicety; and the object of my invention is to produce a very simple device ot this kind which is applicable to the ordinary shuttles and shuttle guards, and by which the tension may be adjusted as nicely as desired and in a very expeditious inanner.

To this end niy invention consists in certain features of construction and combinations of parts, as will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings forming a part of this specitication, in which similar igures of reference indicate corresponding parts in all/the views.

Figure 1 is a top plan view of a shuttle provided with my improved tension device. Fig. 2 is an enlarged detail bottom plan view of the tension regulating device. Fig. 3 is a longitudinal section of the same on the line 3 3 in Fig. 7. Eig. e is a top plan view of the tension regulating device with the stud of the spring drum locked in place. Fig. 5 is a cross section on the line 5-5 in Figs. 1 and 4. Fig. 6 is a top plan view of the tension regulating device, but with the stud ot the spring drum in position to be turned. Fig. 7 is a cross section on the line 7-7 in Fig. 6. Eig. S is a side elevation of the guard 5 and Fig. 9 is a section on line 9--9 of Fig. S.

The shuttle body 1G is of the usual kind, having the customary recess 11 in which the bobbin 12 is held, and the usual eyelets 13 arranged in series, through which the thread 14. passes. lt is also provided on one side with a guard 15 which ris of the usual kind and shape, but is made somewhat ditierent from the usual way. As here shown, the guard is of the customary semi-circular shape and is made by spinning out a circular piece .of metal 16, as shown in Fig. S, forming an 1nturned liange 17 on the metal plate thus made, and then cutting the plate in two in the c enter, thus forming two guards. By making the guard of a single piece a very cheap, strong, and durable guard is produced. 'ljhe guard 15 is secured to a base plate 13 which is fastened to the shuttle in the usual way. lVithin the guard are the oppositely arranged tension iiies 19, which are of the customary kind and are hinged, as shown at 20, in the inner central portion of the guard and are adapted to swing toward and away from each other; the flies have the customary loops 21 to receive the thread 14. The thread also passes in the usual way through an eyelet 21 in the outer portion ot the guard. The dies 19 are hingedI to the base plates 22 ot the tension frames 23, which are held within the guard near opposite ends, and each ot' these frames has a cross piece 2e at the top which is extended downward, as shown at 25, this part 25 lying parallel with the main frame and a bearing for the tension spring drum is thus formed. A tension spring drum 26 1s journaled in each of the trames 23, the drum having on its outer side or face a hook 27 to which the tlexible spiral tension spring 2S is secured, and this spring extends inward within the frame 23 and is secured at its outer end to one of the flies 19, as shown at 29. Each drum 26 is open at its outer end and is carried by a revoluble square stud 30, the inner end of which is circular in cross section, and the stud is held at its inner end in -a slot 31 in the side piece 25 of the frame 23, and this inner end is also adapted to enter a hole 32 in the back f the guard 15. Near its outer end the stud is provided with a collar 33 which is pressed normally against the face of the frame 23 and the stud has a square head 3i with a slot therein to receive a screwdriver, this head being adapted to tit snugly in a hole 35 in the frame 23.

lVithin the drum 26 and coiled around the stud is a spiral spring 36, which normally presses against the collar 33, and the tension of the spring is such as to hold the head 34E in the hole 35 in the traine 23. When in this position, the drum cannot turn and it it is desired to turn the drum so as to increase or de= IOO crease the tension of the spring 28, the stud 30 is pushed inward against the tension of the spring 36 and as soon as the head 3i leaves the hole 35, the stud may be turned, after which the head is again brought into registry with the hole and the spring permitted to force the head out into its normal position, thus fastening the drum.

It Will be seen that by turning the drum 26, the spring 28 may be Wound upon it, if desired, so as to increase the tension on the thread 14 to any necessary extent, or by turning the drum in the opposite direction the spring may be slackened so as to decrease the tension.

The tension regulating device Works in the same general Way as the usual tension regulating device, the iiies 19 playing back and forth under the strain of the thread l-i.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination, with the shuttle body and the guard, of the swinging tension iiies having the usual thread loops, the revoluble spring drums arranged behind the dies, and springs connecting the drums and flies and adapted to be Wound upon the drums, substantially as described.

2. The combination, with the swinging iiies having the usual thread loops, of the revoluble drums arranged behind the fiies, a lock` ing device to hold the drums from turning, and a flexible spiral spring connecting the flies and drums, substantially as described.

3. The combination, with the swinging flies having the usual thread loops, the revoluble spring drums, the springs connecting the drums and flies, the spring-pressed studs serving as supports for the drums, adjacent supports for the studs, having squared holes as specified, and squared heads on the studs to enter the said holes, substantially as described.

ETIENNE DOMENGE.

Vitnesses:

LEONARD PIKAAST, ROBERT WILLIAMS. 

